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            <th>&#x542B;&#x4E49;</th>
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            <td>var</td>
            <td>&#x5B9A;&#x4E49;&#x53D8;&#x91CF;</td>
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            <td>if</td>
            <td>&#x7528;&#x5728;&#x6761;&#x4EF6;&#x8BED;&#x53E5;&#x4E2D;&#xFF0C;&#x8868;&#x660E;&#x5F53;&#x6761;&#x4EF6;&#x4E0D;&#x6210;&#x7ACB;&#x65F6;&#x7684;&#x5206;&#x652F;</td>
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            <td>for</td>
            <td>&#x5FAA;&#x73AF;&#x8BED;&#x53E5;</td>
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            <td>&#x4E0E; for &#x914D;&#x5408;&#x4F7F;&#x7528;</td>
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            <td>&#x7EC8;&#x6B62;&#x5F53;&#x524D;&#x811A;&#x672C;&#xFF0C;&#x5E76;&#x9000;&#x51FA;&#x8FD4;&#x56DE;&#xFF0C;&#x5982;<code>exit 200,&apos;&#x6267;&#x884C;&#x6210;&#x529F;&apos;,[1,2,3];</code>(v0.5.0&#x4E2D;&#x65B0;&#x589E;)</td>
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            <td>try</td>
            <td>&#x7528;&#x4E8E;&#x6355;&#x83B7;&#x53EF;&#x80FD;&#x53D1;&#x751F;&#x5F02;&#x5E38;&#x7684;&#x4EE3;&#x7801;&#x5757;</td>
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            <td>import</td>
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            <td>&#x57FA;&#x7840;&#x7C7B;&#x578B;&#x4E4B;&#x4E00;&#xFF0C;&#x8868;&#x793A; Boolean &#x7684;&#xFF1A;&#x771F;&#x503C;</td>
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            <td>false</td>
            <td>&#x57FA;&#x7840;&#x7C7B;&#x578B;&#x4E4B;&#x4E00;&#xFF0C;&#x8868;&#x793A; Boolean &#x7684;&#xFF1A;&#x5047;&#x503C;</td>
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            <td>null</td>
            <td>&#x57FA;&#x7840;&#x7C7B;&#x578B;&#x4E4B;&#x4E00;&#xFF0C;&#x8868;&#x793A; NULL &#x503C;</td>
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            <td>async</td>
            <td>&#x5F02;&#x6B65;&#x8C03;&#x7528;</td>
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